US1165571A - Gas-heater. - Google Patents

Description

LR. CREAMER.

GAS HEATER. APPLiCATlON FILED` DEC. 23, i914.

Patented Des. 28, 1915.

2 SHEETS-SHEET 1.

wnNEssEs I'. R. CREAIVIER.

GAS HEATER.

APPLICATION FILED DEC. 23, 1914.

'Patented De.2s,1915.

2 SHEETS-SHEET 2.

f. I WMS@ WITNESSES having' their 'llNlTED STATE@ PATENT @ldldlltCE JOHN ROSS CREAMER, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO VESTA MANUFACTURING COMPANY, OF PHLADELPHIA, PENNSYLVANIA, A CORPO- RATION OF NEW JERSEY.

incanti. Y

Application led December 23, 1914. Serial No.

To all whom t may concern.'

Be it known that I, JOHN Ross CREAMER, a citizen of the United States, residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Gras-Heater, of which the following isa specification; a My invention consists of a water-heater employing gas as fuel, in which the water to be heated is carried through coils ar ranged above a burner and in which the terminals of theheating coil structure are directly exposed to the iiames of the burner.

It ifurther consists of such a heater in which the gasv inlet for the burner is con trolled by the water-admission valve, so that the fuel cannot be admitted to the burner until the water has been admitted into the heating coil.

It further consists of means for controlling the burner valve to prevent the saine from being opened when the pilotburner is closed. i

' It further consists of other novel features of construction, all as will be hereinafter fully set forth.

The annexed drawings and thefollowing description set forth in detail one mechanical form embodying the invention, such detailed construction being but one of various mechanical forms in which the principle of the invention may be used.

Figure l represents an endv elevation of my improved water-heater. Fig. 2 represents a longitudinal vertical section of said heater. Y Y

' vSimilar numerals of reference indicate corresponding parts in the figures.

eferring to the drawings, the reference Vnumeral 1 indicates an outer casing or jacket, the walls, 2, of which are double and have a non-conducting packing, 3, of asbestos, mineral wool or similar material. The top of said casing has a double head, 4, having a non-heat-conducting packing, 5, formed with an opening, 6, with which it communicates with a chamber, 7, having an outlet, 8, for the exit of 'products from the Athe casing. coils, 9, is supported longitudinally' within smoke and wasteheating-chamber within A plurality of horizontal pipe the casing, one coil above the other and contiguous sides intermeshing, and the end-convolution of the uppermost Patented Dec, 28, i915, 878,66?.

coil extends by a vertical pipe, l0, to the open bottom of the casing where it extends horizontally tothe opposite end of the casing and throughV the same, forming an inlet heating pipe, ll. The ends of the pipe coils are alternately connected with the ends of the adjoining coils, so that the water admitted to the upper coil will pass through the same and the connected intermeshed and superposed coils, the end of the lower of which coils is'connected to an outletpipe, l2, in the end of the casing, by a horizontal pipe, 13, below the horizontal inlet heating pipe and extending at the end of the casing opposite to the inlet-pipe. in open gutter, 11i, is supported below the lowermost pipe-coil and has a drip-pipe, 5, discharging into a remoifable open pan, 16, supported below the open bottom of the casing. A burnerchamber, 17, is supported below the open bottom of the casing and the coils, and has burner-nipples, 18, upon its upper side, directing dames upward into the casing and against the coils, and the waste-products escape at the top of the casing. A mixing chamber, 19, is connected to the feed-pipe 20 of the burner, and is connected to a valve-casing, 2l., having a transverse rotatable valve-plug, 22, controlling the gas-supply. A suitable air-damper, is provided for controlling supply of air into said mixing-chamber. vThe plug 22 of the gas-valve has a radially projecting handle, 25, having a transverse plate, 26, at its end, and said handle closes the valve when turned downward. rThe horizontal inlet-pipe ll is connected outside the casing through a pipe, 36, with a valve-casing, 2'?, the plug, 28, of which is co-axial with the plug of the gas-valve, and has a radially projecting handle, 29, upon its inner end, upon which is a transverse plate, 30, the inner end of which overlaps and engages the inner end of the plate upon the gasvalve-handle A pilot-light pipe, 3l, is connected to a valve-casing, 32, having a plug, 33, and extends beneath the burner, and said casing is connected to the gas-pipe by' a branch-pipe, 3ft. The pilot-plug is supported between and at a right angle to the inner ends of the water and gas valve plugs and has a laterally projecting handle` 35, Vwhich closes the pilot-,valve when its :handle is tilted in front of the handle ot the gas-valve and opens said valve when tilted out of the Way of the gasfvalve handle. f

In practice, when the water-inlet and gasinlet are connected, respectively, to a Watersupply and a gas-supply, the pilot-valve is iirst turned upward and the light at the pilot pipe ignited. The Water-valve handle is now tilted outward and upward, adirnitting Water into the heatingicoiley Theiupfward nieve of the handle for the pilot-valve and the outward move of the' handleof the water-valve Will admit of the handle of the gas-valve being tilted outward, opening the saine to the burner, when the; gas Will he ignited by the pilot-light. The Waterin the coils will be heated by the Haines from. the

burner and may be' drawn. as required.` Ars the coils convey the Water in a compara'- tively small diameter body 'and' in a1 tortuous course, presenting a comparatively large heating surface, the Water will be' quickly heated tov a high degree of ternperatiuTe` and will be continually heated asho'ti Water is Withdrawn at the d-ischargeend of thei'pipe coils. TheA inlet and outlet of the Water passingl through the horizontal pipes immediately 'above the burner, the heatedy Water Will be subjected to the highest temperature whenl entering and leaving the heater and, passing through the horizontal s'uperposed coils and exposed to the lieat and? products of' combustion from' theburner, will be eX' posed to the direct' actionof the burnerlame during itsentire` passage through the heater.

"When the operation ci' the, heater' is stopped, the handle of the gas-valve isl'tilt'ed down and said valve closed and, the laine extinguished. The handle of the Watervalv'e can new be tilted doivn= toi close 'the vv'ater-valv'e and the overlapping inner' end of its cross-plate will bear against thefinner end of the cross-plate of lthe gase'valv-e and prevent' the saniefrom beingv opened.. The pilot-valve will also lock the gasvallveshandle-` if the pilot burner is turnedoff, smthat the' gas cannot be turned on when no Water is'admitted tothe coils, and no burning out of the dry heating coils canbe caused.. The heating coils are preferably formed from copper, brass or similar goed heatfconductmetal of suiiicient strength. Vto resistJ the interior steam-pressure generated in the coils.

The outer casing havingthe Walls filled with asbestos or other heat non-conductive material,` will cause practically all heat from the burner' to 'be utilized for heatingl the coils and Water therein and willi retain hot Water in the coils at high= temperaitatre4 after the burner has'been turned od.

The gas cannot be lightedqnor'stay lighted excepting When `the Water-valve is open and the .coils filled, as closing the Water-valve Will .close the gas-valve by .the platesV upon theVV valve-handles engaging and one carrying theother with. .it,. sol therer canI be. no burning out of. the coils as. the Water must be turned on. before. the burner can be lighted. i

'ny leakage from the coils and any moisture which. collects upon the coilsvvill drop down upon the lower coil and thence drop intov the longitudinah gutter from which it is conducted to the pan beneath the burner by the drip-pipe;` so. that-t no moisture. can collect in the: heating chamber' and. corrode the metallic` elements..\vhen the' heater. is; not in. operatiora @ther modes; of applying; the prinoiple .of 'my init'entioni may' be employed'A for themode herein explained. Change Inayf therefore: be madef as. regards the mechanism thus disclosed,v provided the principles.of` construe, tionset. forth, respectively, in theftollewing claimsn are employed..

Having thusv describedA my invention, Whatll claim. asi-nevix and. desire: to: secuue by Lettere Patent,` is :lee-

1. A maten-heater consistingiio a casing having. an openfbotftoma a horizontal. pipe.L `coil supported. Within said. casing,s .ai horiz- Zontal. inlet heating: pipe supported `ini the coil and communicatinguvithi ionefend! .oil' the -samegnnd ani eutletpipe Withini the coil and communicating' with the:V oppositef IendI .of theI 'coil,. saidx .coiisf being supporterli lengt tudinally within said casing one coil-above the: other and havingstheiifk 'contiguous' sides intermeshingg. thel end convolution: :off the uppermost coil having a vertical pipe exf- -tendin g: .dorvnxvfa'rdly"Y therefrom. tolwiand"V the openI bottom ezt the casing YWhe-ref-itfeirtends longitudinally tei the. opposite; yend. uit? said .cas-ing;

2'. A. water-heater consisting of4 a :casing having heat non-conducting Warlls and .an openibottomi and an outlet in its top, a plurality of hor-.izoirtaii inlet heating-pipe coils supp orted saidv casing one fabovef 'the other and having the adjoining portionsv their loops intermeshing, an inlet heating pipe extendingl throu hf the easing and longitudinallythrough the levi/.erf coil'` 4and communicating. with theierrd of the upper coil, and an. Youtlet heatingv pipeA Communi- --cating with the lowerinost coil.4 extendini? through the same. y

3 A Water-heater consisting of. a. 635mg having heat. non-clonduetingfavalls imdzall open bottom andf an'A outlet its .topa 1a plurality' of horizontally arranged; pipe coils.v supported in saideasing one aboveethe .other and; havingthe adjoiningportinsfo their loops lintfermes ing, andi' connected ,fal-

tiernately Opposite @nder inletlieatug pipeA horizontally exterrdfingfthrough'. ithe end walter. the easing and, .the flower cq eonneeted to oneendof thefuppee will,

ff. bottom and top and having an inlet pipe 11 extending across the bottom of the casing,

said pipe having the upward extension 10 communicating'with the loops 9 arranged 1n intermeshing'staggered order, the outer Gopes of this patent may be obtained for ive cents each, by addressing the Commissioner of Patents,V

portion with a laterally extending outlet plpe 13 arrangedin proximity to the heating medium, said latter pipe terminating in the outlet pipe 12.

JOHN ROSS CREAMER. Witnesses:

K. M. BROPHY, C. D. MCVAY.

Washington, D. C.

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